NaKC4H4O64H2O

1. printing the plate, mirror, hot water bottle industry reducing agent a as on industry the In
2. Electroplating industry complexing agent
3 laxatives for medicine
4 Telecommunication crystal speakers eta microphones for industry
5 fertilizer industry ADA desulfurization agent
6 glass in used are or other industries
7 sugar reducing of monitoring the in food, the Farin reagent tartrate copper generation in added, copper of production the promote

8 analysis chemical metal ions shield to used

Production operation
1, crude of preparation the:
neutralization ⑴: put material raw potassium hydrogen tartrate the tank the into, water of amount the twice, steam with boiled to boil, add constant stirring in, slowly add dry sodium carbonate eta neutral it does until not produce bubbles so far. Time this At solution the paper litmus tested neutral with tested was.
⑵ filter: hot filter bag. Filtrate The transparent or nearly transparent be should.
⑶ concentrated, crystallization: the enamel barrels, heated eta concentrated solution 38-42 Baume degrees of concentration the to into filtrate the, the tray in removed (15-20 cm of thickness appropriate is), room 24 hours for temperature That is natural at crystal. Separate mother liquor the, crystal the, once washed water cold (water and mother liquor recovery combined) with remove, that is, potassium tartrate crude products.
2, products crude of purification the: product crude the plus water of amount the (1-2 times) heated, dissolve to add activated carbon decolorization (carbon added activated sample% 5-15 of volume of amount) 10 minutes for mixing after, filtration mother liquor the separate to (crystallization crude treatment Method, recrystallization the with filtrate the, crystal the colorless eta transparent be should), washed dry or 50 ℃ finished product at dried.